Titanium Alpha Close-Packed Hexagonal Structure
Titanium alpha-close-packed hexagonal structure is the hexagonal close-packed structure of titanium at room temperature with limited cold formability due to fewer active slip systems.
Physicochemical Mechanism of Action
The titanium alpha close-packed structure forms at room temperature and consists of a hexagonal close-packed arrangement. It has only a few active slip systems, which limits its cold formability.
Metallurgical Relevance & Welding Risks
With too fast cooling, the titanium alpha close-packed structure can transition into a less stable structure, which can lead to higher stress strength and possible cracks. Cold formability is limited, so deformation phenomena can occur under high stresses.
Workshop Practice & Instructions
To minimize the risks, cooling should be controlled and slow. When welding titanium, avoid a high cooling rate to ensure structural integrity. Recommended cooling times depend on the specific titanium material, but generally they should be between 10 and 20 seconds per centimeter of thickness.